Réamhaisnéis limistear na farraige

Forecast valid from: 11:00, Wednesday 27 May 2026 until 12:00, Thursday 28 May 2026

Small Craft Warning

Easterly winds will reach force 6 at times Wednesday night and Thursday morning on Irish coasts from Belfast Lough to Strangford Lough to Howth Head.

Gale Warning

Nil

Meteorological Situation at 09:00 UTC

Ireland lies in a mostly moderate to fresh northeast to east airflow generated by a high pressure of 1030hPa, centred to the northeast of the country. The winds will become gusty in places today as instability feeds up from the southeast. Fronts will feed up from the south later today.

Small Craft Warning: In effect

Heavy Swell (>4m) : No

Wave Height Forecast

Forecast for Carnsore Point to Roches Point to Slyne Head

Wind: Easterly or variable force 5 or 6 and locally very gusty imminent. Soon decreasing southeasterly or variable force 3 to 5. Later becoming southerly force 4 or 5.

Weather: Fine at first. Scattered thunderstorms imminent. Cloudy later with patches mist and drizzle. Some fog too.

Visibility: Mostly good at first. Decreasing moderate or poor in precipitation, mist or fog.

Forecast for Slyne Head to Malin Head to Howth Head and for the North Irish Sea

Wind: East to southeast force 3 to 5. Later, increasing force 5 or 6 and gusty in places.

Weather: Fine. Chance of thunderstorms soon. Cloudy for Atlantic area later with patches mist and drizzle.

Visibility: Mostly good.

Forecast for Howth Head to Wicklow Head to Carnsore Point and for the South Irish Sea

Wind: Variable mainly easterly force 3 to 5. Later becoming southerly.

Weather: Fine for a time. Scattered thunderstorms south of the area. Mainly fair later.

Visibility: Mostly good. Poor in any thunderstorms.

Outlook for a further 24 hours until 12:00, Friday 29 May 2026

Southerly winds will be fresh to strong. Cloudy to fair, with patches of drizzle, mist and fog for southern and western sea areas. Southwest winds will increase near gale force for northwest sea areas later. Mainly fair later with a weak and transient ridge of high pressure moving in from the Atlantic.

Forecast issued at: 11:00, Wednesday 27 May 2026

All times are local unless specified